MATLAB: Find the two nearest points from an array given a value

Question

Hello,

Currently I have an 87×1 array called A.

A = 0.1334
    0.1338
    0.1348
    0.1386
    0.1444
    0.1448
    0.1452
    0.1459
    0.1469
    0.1478
    0.1488

I now have a value of 0.1400

What I want from A is the two nearest values to this number. In this case, it should be 0.1386 and 0.1444

I have the following code below which I have been trying to get to work:

k = dsearchn(A,0.1400)

This gives me 4 as the output which makes sense as the 4th row in array A has 0.1386 which is one of the closest.

However, how am I able to get the second closest of 0.1444?

Answer 1

[~,k] = mink(abs(A-0.1400),2);